#include<iostream>
#include<unistd.h>

#define N 2

using namespace std;

int main()
{
    int pipefd[N]={0};
    int n=pipe(pipefd);
    if(n<0) return 1;

    cout<<"pipefd[0]:"<<pipefd[0]<<",pipefd[1]:"<<pipefd[1]<<endl;

    return 0;
}
